cpython

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Pablo Galindo Salgado 572c780aa8 gh-138122: Implement frame caching in RemoteUnwinder to reduce memory reads (#142137 ) This PR implements frame caching in the RemoteUnwinder class to significantly reduce memory reads when profiling remote processes with deep call stacks. When cache_frames=True, the unwinder stores the frame chain from each sample and reuses unchanged portions in subsequent samples. Since most profiling samples capture similar call stacks (especially the parent frames), this optimization avoids repeatedly reading the same frame data from the target process. The implementation adds a last_profiled_frame field to the thread state that tracks where the previous sample stopped. On the next sample, if the current frame chain reaches this marker, the cached frames from that point onward are reused instead of being re-read from remote memory. The sampling profiler now enables frame caching by default.		2025-12-06 22:37:34 +00:00
..
__phello__
_pyrepl	Drop three unused imports (#141875 )	2025-11-23 16:33:05 +00:00
asyncio	gh-105836: Fix `asyncio.run_coroutine_threadsafe` leaving underlying cancelled asyncio task running (#141696 )	2025-12-06 19:33:25 +00:00
collections	gh-140911: Ensure that UserString.index() and UserString.rindex() accept UserString as argument (GH-140945)	2025-11-25 15:25:46 +02:00
compression	gh-132983: Split ``_zstd_set_c_parameters`` (#133921 )	2025-05-28 14:45:08 +00:00
concurrent	gh-139462: Make the ProcessPoolExecutor BrokenProcessPool exception report which child process terminated (GH-139486)	2025-11-11 22:09:58 +00:00
ctypes	gh-140041: Fix import of `ctypes` on Android and Cygwin when ABI flags are present (#140178 )	2025-10-16 05:40:39 +08:00
curses	gh-133575: eliminate legacy checks in `Lib/curses/__init__.py` (#133576 )	2025-05-07 20:28:32 +02:00
dbm	gh-135386: Fix "unable to open database file" errors on readonly DB (GH-135566)	2025-08-22 14:11:59 +03:00
email	gh-68552: fix defects policy (#138579 )	2025-12-06 16:54:29 -05:00
encodings	gh-141968: Use take_bytes in encodings.punycode (#141974 )	2025-11-28 17:47:14 +00:00
ensurepip	gh-140874: Upgrade bundled pip to 25.3 (GH-140876)	2025-11-01 10:25:19 +00:00
html	gh-140875: Fix handling of unclosed charrefs before EOF in HTMLParser (GH-140904)	2025-11-19 13:55:10 +02:00
http	gh-119451: Fix a potential denial of service in http.client (GH-119454)	2025-12-01 17:26:07 +02:00
idlelib	Minor fixes to `idle.rst` and regenerate `help.html` (#140037 )	2025-11-06 03:21:02 -05:00
importlib	gh-141930: Use the regular IO stack to write .pyc files for a better error message on failure (GH-141931)	2025-11-27 19:17:59 +00:00
json	GH-141686: Break cycles created by JSONEncoder.iterencode (GH-141687)	2025-11-18 09:51:18 -08:00
logging	gh-138162: Fix logging.LoggerAdapter with merge_extra=True and without the extra argument (GH-140511)	2025-10-30 12:52:02 +02:00
multiprocessing	gh-142206: multiprocessing.resource_tracker: Decode messages using older protocol (GH-142215)	2025-12-03 12:59:14 +00:00
pathlib	GH-139174: Prepare `pathlib.Path.info` for new methods (part 2) (#140155 )	2025-10-18 02:13:25 +01:00
profiling	gh-138122: Implement frame caching in RemoteUnwinder to reduce memory reads (#142137 )	2025-12-06 22:37:34 +00:00
pydoc_data	Python 3.15.0a2	2025-11-18 16:51:17 +02:00
re	gh-141968: Use take_bytes in re._compiler (#141995 )	2025-11-28 17:46:10 +00:00
site-packages
sqlite3	gh-133390: sqlite3 CLI completion for tables, columns, indices, triggers, views, functions, schemata (GH-136101)	2025-10-24 08:26:36 +02:00
string	GH-132661: Add ``string.templatelib.convert()`` (#135217 )	2025-07-15 11:56:42 +02:00
sysconfig	Replace obsolete platforms with more recent examples (#132455 )	2025-10-10 05:38:13 +00:00
test	gh-138122: Implement frame caching in RemoteUnwinder to reduce memory reads (#142137 )	2025-12-06 22:37:34 +00:00
tkinter	gh-130693: Support more options for search in tkinter.Text (GH-130848)	2025-11-17 14:42:26 +00:00
tomllib	gh-133117: Enable stricter mypy checks for `tomllib` (#133206 )	2025-05-03 16:57:09 +03:00
turtledemo	gh-128062: Fix the font size and shortcut display of the turtledemo menu (#128063 )	2024-12-19 15:24:47 -05:00
unittest	gh-136442: Fix unittest to return exit code 5 when setUpClass raises an exception (#136487 )	2025-11-14 16:59:51 -08:00
urllib	gh-140691: urllib.request: Close FTP control socket if data socket can't connect (GH-140835)	2025-11-05 11:52:11 +01:00
venv	gh-133951: Remove lib64->lib symlink in venv creation (#137139 )	2025-10-04 14:55:17 +01:00
wsgiref	gh-133810: remove `http.server.CGIHTTPRequestHandler` and `--cgi` flag (#133811 )	2025-05-17 09:58:16 +02:00
xml	gh-142145: Remove quadratic behavior in node ID cache clearing (GH-142146)	2025-12-02 23:16:37 -08:00
xmlrpc	gh-136839: Refactor simple dict.update calls (#136811 )	2025-07-19 10:12:10 -07:00
zipfile	gh-139700: Check consistency of the zip64 end of central directory record (GH-139702)	2025-10-07 20:15:26 +03:00
zoneinfo	gh-137976: Explicitly exclude `localtime` from `available_timezones` (#138012 )	2025-09-18 17:32:14 +01:00
__future__.py
__hello__.py
_aix_support.py
_android_support.py	Make Android streams respect the unbuffered (`-u`) option (#138806 )	2025-09-18 11:41:21 +01:00
_apple_support.py	gh-126925: Modify how iOS test results are gathered (#127592 )	2024-12-09 13:28:57 +08:00
_ast_unparse.py	gh-138774: use `value` to `ast.unparse` code when `str` is `None` in `ast.Interpolation` (#139415 )	2025-10-23 13:56:05 +00:00
_collections_abc.py	gh-118803: Make `ByteString` deprecations louder; remove `ByteString` from `typing.__all__` and `collections.abc.__all__` (#139127 )	2025-09-18 18:58:16 +00:00
_colorize.py	gh-141679: Add colour to defaults in `argparse` help (#141680 )	2025-11-23 00:26:50 +00:00
_compat_pickle.py	gh-133810: remove `http.server.CGIHTTPRequestHandler` and `--cgi` flag (#133811 )	2025-05-17 09:58:16 +02:00
_ios_support.py
_markupbase.py	_markupbase.py: Use a permalink for the analysis of MS-Word extensions (GH-129017)	2025-02-06 11:40:43 +01:00
_opcode_metadata.py	GH-139109: Support switch/case dispatch with the tracing interpreter. (GH-141703)	2025-11-18 13:31:48 +00:00
_osx_support.py
_py_abc.py
_py_warnings.py	gh-140691: urllib.request: Close FTP control socket if data socket can't connect (GH-140835)	2025-11-05 11:52:11 +01:00
_pydatetime.py	gh-97517: Add documentation links to datetime strftime/strptime docstrings (#138559 )	2025-09-15 19:50:46 +01:00
_pydecimal.py	gh-76007: Deprecate `__version__` attribute in `decimal` (#140302 )	2025-10-26 12:01:04 +01:00
_pyio.py	gh-129005: Remove copies from _pyio using take_bytes (#141539 )	2025-11-18 10:10:32 +01:00
_pylong.py	Fix typos in comments and test code (#122846 )	2024-08-11 21:16:41 -07:00
_sitebuiltins.py
_strptime.py	gh-81148: Eliminate unnecessary check in _strptime when determining AM/PM (#13428 )	2025-09-19 10:23:12 +00:00
_threading_local.py	gh-107006: Move `threading.local` docstring to docs (#131840 )	2025-05-05 15:00:15 +03:00
_weakrefset.py	gh-89967: make WeakKeyDictionary and WeakValueDictionary thread safe (#125325 )	2024-10-13 21:05:05 +05:30
abc.py
annotationlib.py	gh-141489: Simplify closure/freevar iteration in `annotationlib._build_closure()` (#141490 )	2025-11-19 18:08:08 -10:00
antigravity.py
argparse.py	GH-64532: Include parent's required optional arguments in subparser usage (#142355 )	2025-12-06 18:30:50 +00:00
ast.py	gh-135801: Add the module parameter to compile() etc (GH-139652)	2025-11-13 13:21:32 +02:00
base64.py	gh-141968: Use `bytearray.take_bytes` in `base64` `_b32encode` and `_b32decode` (#141971 )	2025-11-26 21:14:25 +05:30
bdb.py	gh-136057: Allow step and next to step over for loops (#136160 )	2025-11-16 13:57:07 -08:00
bisect.py
bz2.py	gh-132983: Introduce `compression` package and move `_compression` module (GH-133018)	2025-04-27 14:41:30 -07:00
calendar.py	gh-140212: Add html for year-month option in Calendar (#140230 )	2025-10-31 17:28:53 +02:00
cmd.py	gh-133363: Fix Cmd completion for lines beginning with `!` (#133364 )	2025-05-03 22:50:37 -04:00
code.py	gh-135103: Remove an unused local variable in Lib/code.py (GH-135104)	2025-06-04 13:57:31 +09:00
codecs.py	gh-52876: Implement missing parameter in `codecs.StreamReaderWriter` functions (#136498 )	2025-07-10 17:42:14 +02:00
codeop.py	gh-132449: Improve syntax error messages for keywords with typos (#132450 )	2025-04-22 11:01:55 +02:00
colorsys.py
compileall.py	gh-130645: Add color to stdlib argparse CLIs (gh-133380)	2025-05-05 19:46:46 +02:00
configparser.py	gh-65697: Improved error msg for configparser key validation (#135527 )	2025-06-15 12:13:19 -04:00
contextlib.py
contextvars.py	gh-126451: Register contextvars.Context to collections.abc.Mapping (#126452 )	2024-11-07 01:12:45 +03:00
copy.py	gh-132657: improve `deepcopy` and `copy` scaling on free-threading (#138429 )	2025-09-04 13:20:23 +05:30
copyreg.py	gh-132882: Fix copying of unions with members that do not support __or__ (#132883 )	2025-04-24 16:49:09 +00:00
cProfile.py	Remove unused imports (#142320 )	2025-12-06 11:27:31 +00:00
csv.py	gh-137627: Make `csv.Sniffer.sniff()` delimiter detection 1.6x faster (#137628 )	2025-10-23 15:28:29 +03:00
dataclasses.py	gh-142214: Fix two regressions in dataclasses (#142223 )	2025-12-04 20:04:42 -08:00
datetime.py	gh-123843: Remove broken links to the Zope DateTimeWiki (#123846 )	2024-09-08 22:39:23 -04:00
decimal.py	gh-76007: Deprecate `__version__` attribute in `decimal` (#140302 )	2025-10-26 12:01:04 +01:00
difflib.py	gh-95953: Add a css class to changed lines of difflib.HtmlDiff make_table (#139226 )	2025-09-22 13:19:37 +00:00
dis.py	gh-130645: Add color to stdlib argparse CLIs (gh-133380)	2025-05-05 19:46:46 +02:00
doctest.py	gh-69113: Fix doctest to report line numbers for __test__ strings (#141624 )	2025-12-06 15:47:08 -05:00
enum.py	gh-140766: [Enum] add `show_flag_values` and `bin` to `enum.__all__` (GH-140765)	2025-10-30 10:32:55 -07:00
filecmp.py	gh-122400: Handle ValueError in filecmp (GH-122401)	2024-07-30 08:50:30 +00:00
fileinput.py
fnmatch.py	gh-133306: Use \z instead of \Z in fnmatch.translate() and glob.translate() (GH-133338)	2025-05-03 17:58:21 +03:00
fractions.py	gh-87790: support thousands separators for formatting fractional part of Fraction (#132204 )	2025-07-07 11:16:31 +03:00
ftplib.py
functools.py	gh-140873: Add support of non-descriptor callables in functools.singledispatchmethod() (GH-140884)	2025-11-13 19:48:52 +02:00
genericpath.py	gh-71189: Support all-but-last mode in os.path.realpath() (GH-117562)	2025-07-30 10:19:19 +03:00
getopt.py	gh-126946: Improve error message in getopt.do_longs based on existing comment (GH-126871)	2024-11-26 10:54:02 +02:00
getpass.py	gh-138514: getpass: restrict `echo_char` to a single ASCII character (#138591 )	2025-09-16 16:21:55 +02:00
gettext.py	gettext: Remove outdated "TODO" comment (#130890 )	2025-03-06 23:41:03 +00:00
glob.py	docs: be clearer that glob results are unordered (#140184 )	2025-10-19 16:16:35 -04:00
graphlib.py	gh-130914: Make graphlib.TopologicalSorter.prepare() idempotent (#131317 )	2025-03-18 16:28:00 -05:00
gzip.py	Remove some dead code from gzip and tarfile (#138123 )	2025-08-25 16:23:47 +03:00
hashlib.py	gh-136565: use SHA-256 for `hashlib.__doc__` example instead of MD5 (#138157 )	2025-08-26 10:38:53 +00:00
heapq.py	Remove unnecessary slice in heapq.py (gh-139087)	2025-09-18 00:52:46 -05:00
hmac.py	gh-136912: fix handling of `OverflowError` in `hmac.digest` (#136917 )	2025-07-26 08:22:06 +00:00
imaplib.py	gh-76007: Deprecate `__version__` attribute in `imaplib` (#140299 )	2025-10-20 15:20:44 +03:00
inspect.py	gh-131116: Fix inspect.getdoc() to work with cached_property objects (GH-131165)	2025-11-12 10:07:21 +00:00
io.py	gh-132952: Speed up startup by importing _io instead of io (#132957 )	2025-04-28 08:38:56 -07:00
ipaddress.py	gh-141497: Make ipaddress.IP{v4,v6}Network.hosts() always returning an iterator (GH-141547)	2025-11-17 19:29:06 +02:00
keyword.py
linecache.py	gh-122255: Synchronize warnings in C and Python implementations of the warnings module (GH-122824)	2025-11-14 16:49:28 +02:00
locale.py	gh-137729: Fix support for locales with @-modifiers (GH-137253)	2025-08-18 10:11:15 +03:00
lzma.py	gh-132983: Introduce `compression` package and move `_compression` module (GH-133018)	2025-04-27 14:41:30 -07:00
mailbox.py	gh-140808: Remove __class_getitem__ from mailbox._ProxyFile (#140838 )	2025-11-02 13:56:59 -08:00
mimetypes.py	gh-141018: Update `.exe`, `.dll`, `.rtf` and `.jpg` mime types in `mimetypes` (#141023 )	2025-11-17 13:32:00 +02:00
modulefinder.py	gh-135801: Add the module parameter to compile() etc (GH-139652)	2025-11-13 13:21:32 +02:00
netrc.py	gh-135823: improve error message in `netrc` security checks (#135827 )	2025-06-23 12:49:27 +02:00
ntpath.py	gh-136065: Fix quadratic complexity in os.path.expandvars() (GH-134952)	2025-10-31 14:49:51 +01:00
nturl2path.py	GH-125866: Deprecate `nturl2path` module (#131432 )	2025-03-19 19:33:01 +00:00
numbers.py	gh-122450: Expand documentation for ``Rational` `and` `Fraction`` (#136800 )	2025-08-04 02:15:59 +00:00
opcode.py	gh-131738: optimize builtin any/all/tuple calls with a generator expression arg (#131737 )	2025-03-28 10:35:20 +00:00
operator.py	gh-115808: Add ``is_none` `and` `is_not_none` `to` `operator`` (#115814 )	2024-08-10 20:16:34 +01:00
optparse.py	gh-76007: Deprecate `__version__` attribute (#138675 )	2025-09-29 12:03:23 +03:00
os.py	gh-120057: add `os.reload_environ` to `__all__` (#140763 )	2025-10-29 21:21:26 +00:00
pdb.py	gh-141982: Fix pdb can't set breakpoints on async functions (#141983 )	2025-12-01 23:40:02 -08:00
pickle.py	gh-115952: Fix a potential virtual memory allocation denial of service in pickle (GH-119204)	2025-12-05 19:17:01 +02:00
pickletools.py	gh-131178: Add tests for `pickletools` command-line interface (#131287 )	2025-11-22 19:17:06 +02:00
pkgutil.py	gh-131152, pkgutil: Remove unused imports (#131149 )	2025-03-12 15:03:36 +01:00
platform.py	gh-141600: Fix musl version detection on Void Linux (GH-141602)	2025-11-22 12:17:40 -06:00
plistlib.py	gh-119342: Fix a potential denial of service in plistlib (GH-119343)	2025-12-01 17:28:15 +02:00
poplib.py	gh-130637: Add validation for numeric response data in `stat()` method (#130646 )	2025-03-02 08:05:40 -05:00
posixpath.py	gh-136065: Fix quadratic complexity in os.path.expandvars() (GH-134952)	2025-10-31 14:49:51 +01:00
pprint.py	GH-90117: Check for list and tuple before MappingView in pprint (GH-135779)	2025-06-24 14:41:41 -07:00
profile.py	gh-138122: Implement PEP 799 (#138142 )	2025-08-27 17:52:50 +01:00
pstats.py	gh-140137: Handle empty collections in profiling.sampling (#140154 )	2025-10-15 14:59:12 +01:00
pty.py	gh-124405: Fix `NameError` in `openpty` (#124406 )	2024-09-24 20:06:39 +02:00
py_compile.py	gh-130645: Add color to stdlib argparse CLIs (gh-133380)	2025-05-05 19:46:46 +02:00
pyclbr.py
pydoc.py	gh-132686: Add parameters inherit_class_doc and fallback_to_class_doc for inspect.getdoc() (GH-132691)	2025-11-12 00:01:25 +02:00
queue.py	Fix Queue.shutdown docs for condition to unblock a join (gh-137088)	2025-07-25 07:56:28 -06:00
quopri.py
random.py	Minor edit: Move comments closer to the code they describe (gh-136477)	2025-07-09 10:23:46 -07:00
reprlib.py	gh-135487: fix `reprlib.Repr.repr_int` when given very large integers (#135506 )	2025-06-24 11:09:46 +00:00
rlcompleter.py
runpy.py	gh-135801: Add the module parameter to compile() etc (GH-139652)	2025-11-13 13:21:32 +02:00
sched.py
secrets.py
selectors.py
shelve.py	Drop three unused imports (#141875 )	2025-11-23 16:33:05 +00:00
shlex.py	gh-138804: Check type in `shlex.quote` (GH-138809)	2025-09-12 14:26:21 -04:00
shutil.py	gh-132983: Add missing references to Zstandard in shutil docstrings (GH-136617)	2025-07-23 18:09:53 +00:00
signal.py
site.py	gh-138993: Dedent `credits` text (#138994 )	2025-10-14 11:15:17 +03:00
smtplib.py	gh-139434: Update selected RFC 2822 references to RFC 5322 (#139435 )	2025-11-04 14:46:07 -05:00
socket.py	gh-99813: Start using `SSL_sendfile` when available (#99907 )	2025-07-12 12:42:35 +00:00
socketserver.py	gh-76007: Deprecate `__version__` attribute (#138675 )	2025-09-29 12:03:23 +03:00
ssl.py	Docs: fix RFC index reference for TLS 1.3 (#142262 )	2025-12-06 14:05:20 +01:00
stat.py	gh-83714: Implement os.statx() function (#139178 )	2025-10-15 13:44:08 +00:00
statistics.py	gh-140938: Raise ValueError for infinite inputs to stdev/pstdev (GH-141531)	2025-11-14 23:25:45 +00:00
stringprep.py
struct.py
subprocess.py	gh-87512: Fix `subprocess` using `timeout=` on Windows blocking with a large `input=` (GH-142058)	2025-11-28 22:07:03 -08:00
symtable.py	gh-135801: Add the module parameter to compile() etc (GH-139652)	2025-11-13 13:21:32 +02:00
tabnanny.py	gh-76007: Deprecate `__version__` attribute (#138675 )	2025-09-29 12:03:23 +03:00
tarfile.py	gh-57911: Sanitize symlink targets in tarfile on win32 (GH-138309)	2025-09-05 16:19:47 +02:00
tempfile.py	gh-136156: Allow using linkat() with TemporaryFile (#136281 )	2025-07-08 18:39:47 +02:00
textwrap.py	gh-139065: Fix trailing space before long word in textwrap (GH-139070)	2025-10-10 16:29:18 +03:00
this.py
threading.py	gh-114827: clarify `threading.Event.wait` timeout behavior (#114834 )	2025-10-14 11:34:53 +03:00
timeit.py	gh-139374: colorize traceback when using `timeit` command-line interface (#139375 )	2025-09-28 11:49:18 +00:00
token.py	gh-131507: Add support for syntax highlighting in PyREPL (GH-133247)	2025-05-02 20:22:31 +02:00
tokenize.py	gh-63161: Fix tokenize.detect_encoding() (GH-139446)	2025-10-20 20:08:47 +03:00
trace.py	gh-130645: Add color to stdlib argparse CLIs (gh-133380)	2025-05-05 19:46:46 +02:00
traceback.py	gh-142236: Fix incorrect keyword suggestions for syntax errors (#142328 )	2025-12-06 21:09:35 +00:00
tracemalloc.py
tty.py
turtle.py	gh-138772: Fix and improve documentation for turtle color functions (GH-139325)	2025-10-13 18:32:16 +03:00
types.py	gh-136492: Add `FrameLocalsProxyType` to `types` (GH-136546)	2025-07-20 20:49:00 +02:00
typing.py	gh-133601: Remove deprecated `typing.no_type_check_decorator` (#133602 )	2025-10-20 21:10:44 +00:00
uuid.py	gh-76760: test that `uuid.uuid1()` sets the version field (#139033 )	2025-09-17 13:31:51 +00:00
warnings.py	gh-128384: Use a context variable for warnings.catch_warnings (gh-130010)	2025-04-09 16:18:54 -07:00
wave.py	gh-141968: use `bytearray.take_bytes` in `wave._byteswap` (#141973 )	2025-11-26 21:15:12 +05:30
weakref.py	gh-89967: make WeakKeyDictionary and WeakValueDictionary thread safe (#125325 )	2024-10-13 21:05:05 +05:30
webbrowser.py	gh-130645: Add color to stdlib argparse CLIs (gh-133380)	2025-05-05 19:46:46 +02:00
zipapp.py	gh-130645: Add color to stdlib argparse CLIs (gh-133380)	2025-05-05 19:46:46 +02:00
zipimport.py	gh-135801: Add the module parameter to compile() etc (GH-139652)	2025-11-13 13:21:32 +02:00